algobridge

• Multi-Resolver Competition: 4 different resolver strategies (High-frequency, Arbitrage, MEV, Conservative) compete for orders with staggered bidding and risk-based allocation
• 1inch Escrow Factory Integration: Deterministic escrow creation using official 1inch factory contracts for unified orderHash coordination
• Atomic Security: Hash Time Lock Contracts (HTLCs) ensure atomic swaps with secret-based resolution and automatic timelock refunds
• Gasless Experience: Users sign EIP-712 intents off-chain; resolvers pay all gas fees and earn profit from spreads
• Production Architecture: Proper environment separation (.env.relayer, .env.resolvers), comprehensive error handling, and real-time monitoring

The bridge supports partial fills, Dutch auction pricing mechanisms, and provides complete cross-chain liquidity with automatic failsafe mechanisms

Core Technologies:

• Ethereum: Solidity smart contracts on Sepolia testnet with EIP-712 signature verification
• Algorand: PyTeal smart contracts for HTLC implementation on Algorand testnet
• Node.js: Multi-resolver relayer system with competitive bidding logic
• ethers.js: Ethereum blockchain interaction and transaction management
• algosdk: Algorand blockchain integration and account management

Architecture Highlights:

Smart Contracts:

• LimitOrderBridge: EIP-712 based intent system for gasless order submission
• 1inch Escrow Factory: Official 1inch factory for deterministic escrow creation (0x0d8137727DB1aC0f7B10f7687D734CD027921bf6)
• Algorand HTLC: PyTeal contracts for atomic swap resolution on Algorand side

Multi-Resolver System: // 4 competitive resolver strategies from .env.resolvers

• High-Frequency-Resolver: Fast execution, 1% premium bidding
• Arbitrage-Resolver: Profit-focused, 5% discount strategy
• MEV-Resolver: Maximum value extraction, 5% premium
• Backup-Resolver: Conservative, 10% discount fallback